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BM_SETSTATE Overview  Group

An application sends a BM_SETSTATE message to change the highlight state of a button. The highlight state indicates whether the button is highlighted as if the user had pushed it.

BM_SETSTATE 

wParam = (WPARAM) fState;   // highlight state 

lParam = 0;                 // not used; must be zero 

 

Parameters

fState
Value of wParam. Specifies whether the button is to be highlighted. A value of TRUE highlights the button. A value of FALSE removes any highlighting.

Return Values

This message always returns zero.

Remarks

Highlighting only affects the appearance of a button. It has no effect on the check state of a radio button or check box.

A button is automatically highlighted when the user positions the cursor over it and presses and holds the left mouse button. The highlighting is removed when the user releases the mouse button.

See Also

BM_GETSTATE, BM_SETCHECK

See also:


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